Using a knife or scissors, snip the stem of the parsley plant just below the leaves.
Rinse parsley under cool water to remove dirt and bugs while discarding any damaged leaves.
Dry the parsley with the paper towels.
Tie the string tightly around the base of the parsley bunch.
Cut small ventilation holes in the paper bag with the scissors and place parsley upside down inside the bag while gathering the top of the bag tightly around the tied stems.
Hang the paper bag from the gathered top in a warm dry area until the parsley is completely dry.
Remove the dried parsley and store in an airtight container.